The B43727A9688M658 from TDK Corporation is a Supercapacitor with Capacitance 6800 µF, Voltage Rating 400 V, Equivalent Series Resistance 6.8 to 18 milli-ohm, Temperature Operating Range -25 to 85 Degree C. Tags: Screw Mount. More details for B43727A9688M658 can be seen below.